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1218 articles for “Signals”
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Performance Investigation on Fault Analysis in Power Transformer using Modified Fuzzy Controller
Abstract: This article presents the fault analysis and differential protection scheme of the three phase Power Transformers (PT). The proposed and designed relay operates mainly during the internal fault condition and it must be insensitive to any fault outside the zone of protection. In this paper, a designed and modified fuzzy logic controller based differential protection schemes have been used to product the system. The external and internal fault condition is …
Published in Journal of Power Electronics and Power Systems · Vol. 12, Issue 2, 2022 · pp. 32–43 Read article
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To Optimize the Efficiency of Bottle Sleeving Machine by Reducing Systematic Errors
Abstract: Bottle sleeving machines are the machines use to label and sleeving the caps to the bottle. To gain the mass production and to improve the efficiency of this machine our team decided to change the parameters and proper alignment of few parts in machine. Previously, there were several errors include like systematic errors. Firstly, we change the sensors positioning to get successive operation of sleeves to the bottle. There were …
Published in Journal of Production Research & Management · Vol. 12, Issue 2, 2022 · pp. 23–29 Read article
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Dynamic Analysis of the Proposed Bi-directional Converter for Charging and Discharging Operation
Abstract: AbstractThis paper proposes a fifth order bi-directional converter configuration with low current ripple on either side as well as good voltage conversion range having only three switches. This converter is implemented for load power levelling between a DC grid and secondary batteries. A comparative study of proposed topology with widely used bi-directional converter configurations is made and relative merits and demerits are pointed out. With state-space and discrete-time modelling techniques, …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 2, 2017 · pp. 41–51 Read article
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SPICE Modeling of LDMOSFET Transistor
Abstract: AbstractHigh voltage integrated circuits, these days are the most viable alternatives to discrete circuits for various applications. The popular amongst them is the lateral double diffused MOS transistor (LDMOS). It is based on the lightly doped drain (LDD) concept. The constraint that occurred in modeling LDMOS is to minimize the on-resistance along with maintaining a high breakdown voltage. To achieve the objective, the help of RESURF (Reduced Surface Field) concept …
Published in Journal of Semiconductor Devices and Circuits · Vol. 3, Issue 1, 2016 · pp. 42–57 Read article
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Comparative Study of Microelectromechanical Switches for RF Applications: A Review
Abstract: Switches are very basic components for any communication application. The switch performance depends on their ability to allow a signal without loss and its speed of operation. In this paper, the different switches which are being used for RF application are presented along with their advantages and disadvantages. The main focus of this study is to provide comparative study about different microelectromechanical (MEMS) switches and also different techniques to improve …
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 2, 2019 · pp. 6–12 Read article
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Chromatic Dispersion Compensation in Optical Fiber Communication System using FBG and EDFA
Abstract: AbstractNowadays optical communication is a most significant technique to transmit the data. In daily life we share our useful data by using optical network but dispersion is the main factor towards limiting the performance of optical system. However, the compensation of dispersion by Dispersion Compensating Fiber (DCF) and Fiber Bragg Grating (FBG) can boost significantly the system. This proposed work investigates and analyze the chromatic dispersion compensation in optical fiber …
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 3, 2019 · pp. 1–7 Read article
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A Review on Reliability Modeling, Performance and Cost-benefit Analysis of Optical Fiber Network in DCRUST
Abstract: AbstractThis paper includes the survey of optical fiber network layer in the Deenbandhu Chhotu Ram University of Science and Technology (DCRUST) and its reliability modeling aspects to evaluate reliability of that optical fiber network. To find out reliability is important part of a system is important to know its period of working, failure rates and cost benefit analysis. Optical fiber which are buried are significantly more vulnerable to human related …
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 1, 2020 · pp. 8–13 Read article
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PI Control Based switching Fault control in Four Switch Voltage Source Inverter
Abstract: This paper presents a fault tolerant control in four switch voltage source inverter by using PI controller. Four switch voltage source inverter has four switches with two legs and DC input link. Four switch voltage source inverter (FSVSI) can produce a three phase ac voltage as in six switch three phase voltage source inverter with only a four power semiconductor switches in a short of two switches. The two switch …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 1, 2022 · pp. 21–28 Read article
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T-π Network Simulation and Thevenin- Norton Equivalent Circuit Values From Laplace Description Using Pspice Software
Abstract: From the conversion methods of T-π (star-delta) for impedances circuits, the behavioral modeling of Pspice simulation program is used to obtain equivalent circuits using LAPLACE option. The conversions are verified for two types of circuits by obtaining AC values of voltages and currents at various nodes and branches using Pspice computer simulations. There are many ways of expressing Thevenin/Norton equivalent circuit parameters such as (a) as real numbers for pure …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 2, 2022 · pp. 43–58 Read article
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The Emerging Technologies in the Field of Semiconductors Along with the Use of the System on Chip
Abstract: An entire electronic or computer system can be combined onto a single platform using a system on chip, which is effectively an integrated circuit. The primary objectives underlying the development of this system on chip are to decrease energy waste, cut costs, and decrease the area occupied by massive systems. Students can understand and experience many methods utilised at each level of the design hierarchy using this strategy. The expansion …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 1, 2024 · pp. 8–15 Read article
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Analysis of Communication Tower under Wind Load
Abstract: With the rapid and widespread expansion of long distance broadcasting and communication in last two decades, the structural engineers have been faced with the problem of support of antennas at great heights, which is necessary to broadcast signals over long distance. In addition, the field of power transmission also requires the high tension conductors to be installed at reasonable heights. The present study focus on analysis of communication towers for …
Published in Journal of Structural Engineering and Management · Vol. 3, Issue 2, 2016 · pp. 12–19 Read article
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Determining the Effect of Cutting Parameters on Surface Roughness in Turning Process Using the Taguchi Method
Abstract: This study focuses on optimizing turning parameters based on the Taguchi method to minimize surface roughness (Ra). Experiments have been conducted using the L9 orthogonal array in a CNC turning machine. Turning tests are carried out on aluminium alloy AISI 1061 with carbide cutting tools. Each experiment is repeated two times and each test uses a new cutting insert to ensure accurate readings of the surface roughness. The statistical methods …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 2, Issue 3, 2015 · pp. 17–22 Read article
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The Practical Use of Cholesteric Liquid Crystal Film for Development of New Technologies
Abstract: The use of cholesteric liquid crystal films, using the remarkable property of cholesteric liquid crystals to change their color at the temperature changes, is well known for measuring temperature, in medicine, in jewelry and so on. The article presents the practical use of cholesteric liquid crystal films in the developed musical color device, which “animates” the pattern with a multi-colored color in accordance with the frequency spectrum of the signal …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 8, Issue 2, 2021 · pp. 24–30 Read article
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Automation to Computation for Wireless Networks—GSM
Abstract: AbstractZigBee technology has aimed to exchange data wirelessly at a short distance using radio wave transmission comprising features to create ease, perception and controllability. Compact robot system forms have impetus over police investigate up to explore of explosives. Home appliance control and monitor have been additive after embedded explore formative within cell phones. Railway level crossings manned or unmanned have rectification opportune same as signal purviews through ZigBee coded sensing …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 7, Issue 1, 2020 · pp. 1–7 Read article
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Automated Vehicle Accident Reporting and Air Pollution Detection with Advance Tracking System
Abstract: AbstractThis project is designed to inform about an accident that is occurred to a vehicle to the family members of the traveling persons. This uses a vibration sensor which can detect the abrupt vibration when an accident is occurred. A buzzer alert system will also be given. This sends a signal to microcontroller. This Project is designed with an automatic vehicle accident alert system using GPS and GSM modems. The …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 7, Issue 2, 2020 · pp. 7–18 Read article
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Video Telephony using Cable TV Distribution Network
Abstract: This paper focuses to implement video telephony using cable TV distribution network. We had used coaxial cable which is main part of cable TV network and it provides efficient bandwidth for video telephony. The major design issue to implement full-duplex communication channel for audio-video information and establish switching control section for routing the signal to the destination. We had chosen coaxial cable for communication link because it is already established …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 3, Issue 1, 2016 · pp. 1–7 Read article
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Performance Analysis of Carrier Frequency Offset (CFO) and Phase Noise in 4G Communication System
Abstract: For telecommunication services the dramatic shift in the market has been made in beginning of 21st century. In these days' communication network the key challenges is to integrate numerous serves, convey the additional data as expeditiously as doable through limited bandwidth and providing high information data rates. For 4G communication systems 3GPP introduced two features Higher Order Modulation and Multiple Input Multiple Output (MIMO) in OFDM system but one limiting …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 3, Issue 1, 2016 · pp. 33–46 Read article
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Network Selection with Load Balancing in Wireless Heterogeneous Environment
Abstract: Coexistence of various wireless radio access networks (RAN) and ability of mobile terminals to switch between them efficiently makes an optimal selection of serving mobile networks for groups of mobile-clients a major challenge with efficient load balancing. To overcome this problem, more flexible heterogeneous wireless networks (HWN) are required with the advantage of mobility, consistency, ubiquitous provision and improved spectral efficiency. In this paper, network selection with load balancing criteria …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 3, Issue 3, 2016 · pp. 7–15 Read article
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Analysis of Cognitive Radio Spectrum Sensing Algorithms Using Various Noise Channels
Abstract: As we know that now a day’s there is a huge advancement in wireless communication and its applications, efficient use of spectrum has been a great issue for researchers. Due to such issue, development in cognitive radio (the intelligent network) has been in demand which will analyze the spectrum to increase its efficiency by utilizing it properly. This paper focuses on sensing the spectrum in order to find out the …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 2, Issue 2, 2015 · pp. 11–16 Read article
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Mitigation of Harmonics in Industries using a Multilevel Shunt Active Power Filter
Abstract: The vast development in power electronic equipments causes higher harmonics in the distribution line in order to reduce the harmonics. This work proposes a design of Multi-Level Inverter (MLI) based Shunt Active Filter (SAF) intended to sort out the presence of harmonics in the distribution line. This proposed SAF utilizes three level diodes clamped MLI as VSI. d-q theory is employed for reference signal generation. In order to regulate the …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 8, Issue 3, 2021 · pp. 39–50 Read article